Page 79 of 660

791-3. Hybrid system
1
For safety and security
RX450h_U_OM0E013U
■Sounds and vibrations specific to a hybrid vehicle
There may be no engine sound or vibration even though the vehicle is able to move with
the “READY” indicator is illuminated. For safety, make sure to shift the shift lever to P and
apply the parking brake when parked.
The following sounds or vibrations may occu r when the hybrid system is operating and
are not a malfunction:
●Motor sounds may be heard from the engine compartment.
●Sounds may be heard from the hybrid battery (traction battery) behind the rear seats
when the hybrid system starts or stops.
●Relay operating sounds such as a snap or so ft clank will be emitted from the hybrid bat-
tery (traction battery), behind the rear se ats, when the hybrid system is started or
stopped.
●Sounds from the hybrid system may be heard when the back door is open.
●Sounds may be heard from the transmission wh en the gasoline engine starts or stops,
when driving at low spee ds, or during idling.
●Engine sounds may be heard when accelerating sharply.
●Sounds may be heard due to regenerative braking when the brake pedal is depressed
or as the accelerator pedal is released.
●Vibration may be felt when the ga soline engine starts or stops.
●Cooling fan sounds may be heard from th e air intake vents under the rear seats.
■Vehicle proximity notification system
In the following cases, the vehicle proximity notification system may be difficult for sur-
rounding people to hear.
●In very noisy areas
●In the wind or the rain
Also, as the vehicle proximity notification system is installed on the front of the vehicle, it
may be more difficult to hear from the re ar of the vehicle compared to the front.
■Maintenance, repair, recycling, and disposal
Contact your Lexus dealer regarding mainte nance, repair, recycling and disposal. Do
not dispose of the vehicle yourself.
■Customization
Some functions can be customized. ( P. 607)
Page 81 of 660

811-3. Hybrid system
1
For safety and security
RX450h_U_OM0E013U
The air intake/discharge vents for the
hybrid battery (traction battery) are
located under the rear seats and in lug-
gage compartment respectively. If the
air intake vents are blocked, it could
lead to a reduction in hybrid battery
(traction battery) output.
When a certain level of impact is detected by the impact sensor, the emergency
shut off system blocks the high voltage current and stops the fuel pump to mini-
mize the risk of electrocution and fuel leakage. If the emergency shut off system
activates, your vehicle will not restart. To restart the hybrid system, contact your
Lexus dealer.
A message is automatically displayed when a malfunction occurs in the hybrid
system or an improper operation is attempted.
If a warning message is shown on the
multi-information display, read the
message and follow the instructions.
( P. 543)
Hybrid battery (traction battery) air intake/discharge vents
Air intake vents
Air discharge vents
Emergency shut off system
Hybrid warning message
Page 131 of 660
131
3
Operation of
each component
RX450h_U_OM0E013U
3-1. Key information
Keys .................................................. 132
3-2. Opening, closing and locking the doors
Side doors ...................................... 136
Power back door .........................142
Smart access system with push-button start ...................... 158
3-3. Adjusting the seats Front seats...................................... 164
Rear seats....................................... 165
Driving position memory ..........174
Head restraints .............................179
3-4. Adjusting the steering wheel and mirrors
Steering wheel ...............................181
Inside rear view mirror ............. 183
Outside rear view mirrors....... 185
3-5. Opening, closing the windows and
moon roof
Power windows ........................... 189
Moon roof ...................................... 193
Panoramic moon roof ................197
Page 141 of 660

1413-2. Opening, closing and locking the doors
3
Operation of each component
RX450h_U_OM0E013U
■Conditions affecting the operation of the smart access system with push-button start
or wireless remote control
P. 160
■Customization
Some functions can be customized. ( P. 607)
WARNING
■To prevent an accident
Observe the following precautions while driving the vehicle.
Failure to do so may result in a door opening and an occupant falling out, resulting in
death or serious injury.
●Ensure that all doors are properly closed and locked.
●Do not pull the inside handle of the doors while driving.
Be especially careful for the front doors, as the doors may be opened even if the
inside lock buttons are in locked position.
●Set the rear door child-protector locks wh en children are seated in the rear seats.
■When opening or closing a door
Check the surroundings of the vehicle such as whether the vehicle is on an incline,
whether there is enough space for a door to open and whether a strong wind is blow-
ing. When opening or closing the door, hold the door handle tightly to prepare for any
unpredictable movement.
Page 164 of 660

164
RX450h_U_OM0E013U3-3. Adjusting the seats
Seat position adjustment switch
Seat cushion (front) angle adjust-
ment switch
Vertical height adjustment switch
Seatback angle adjustment switch
Lumbar support firmness adjust-
ment switch
Lumbar support height adjustment
switch (if equipped)
Seat cushion length adjustment
switch (if equipped)
■Power easy access system
The driver’s seat and steering wheel move
in accordance with power switch mode and
the driver’s seat belt condition. ( P. 174)
Front seats
Adjustment procedure
1
2
3
4
5
6
7
WARNING
■When adjusting the seat position
●Take care when adjusting the seat position to ensure that other passengers are not
injured by the moving seat.
●Do not put your hands under the seat or near the moving parts to avoid injury.
Fingers or hands may become jammed in the seat mechanism.
●Make sure to leave enough space around the feet so they do not get stuck.
■Seat adjustment
To reduce the risk of sliding under the lap belt during a collision, do not recline the seat
more than necessary.
If the seat is too reclined, the lap belt may slide past the hips and apply restraint forces
directly to the abdomen, or your neck may contact the shoulder belt, increasing the risk
of death or serious injury in the event of an accident.
Adjustments should not be made while drivin g as the seat may unexpectedly move and
cause the driver to lose control of the vehicle.
Page 165 of 660
1653-3. Adjusting the seats
3
Operation of each component
RX450h_U_OM0E013U
Manual seat
Seatback angle adjustment lever
Seat position adjustment lever
Power seat
Seatback angle adjustment switch
Seat position adjustment lever
Rear seats
Adjustment procedure
1
2
1
2
Page 166 of 660
1663-3. Adjusting the seats
RX450h_U_OM0E013U
■Before folding down the rear seatbacks Stow the rear center seat belt and seat belt buckles.
Lower the rear seat head restraints. ( P. 179)
■Folding down the rear seatbacks (manual seat)
Rear seat lever
Pull the seatback angle adjustment
lever and fold down the rear seat-
back.
Luggage compartment lever
Pull the seatback angle adjustment
lever and fold down the rear seat-
back.
Folding down the rear seatbacks
1
2
Page 167 of 660

1673-3. Adjusting the seats
3
Operation of each component
RX450h_U_OM0E013U
■Folding down the rear seatbacks (power seat)
Press and hold the switch to fold down the rear seatback.
A buzzer will sound and then the operation will start. The buzzer will sound again
when the operation is completed.
To stop the operation partway, press either side of the rear seat operation switch of
the operating seat. Any rear seat operatio n switch for the operating seat, regard-
less of location, can be used to stop the operation. (A buzzer may sound depend-
ing on the position that the rear seatback is stopped.)
■Folding down the rear center seatback
Pull the lock release lever behind the
rear seatback and fold the rear seat-
back down.
To return the rear center seatback to
its original position, lift it up until it
locks.
Rear seat operation switch
(rear seat)Rear seat operation switch
(luggage compartment)
When using the rear seat operation switch (rear seat): If the rear seatback is
reclined, bring the rear seatback to th e most upright position and press and
hold the switch again.